Ettore Cella Spa

Products

	differential pressure switch

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Model Number

DC - DCA - DE - DEC

GENERAL FEATURES OF SERIES DE
?ELECTRIC CONSTRUCTION: Explosionproof
Mode of protection EEx-d IIC T6, to std. EN 50.018.
Certificate no. CESI 02ATEX119.
Degree of protection IP65 (NEMA 4).
?ENCLOSURE: case and cover copper free aluminium alloy, threaded coupling with tamper proof device. Epoxy exterior painting, grey colour.
Cable entry: 1/2-14 NPT-F.
Terminal block: suitable for wires section 1,5 mm2 (minimum 0,5 mm2). Insulating material to VDE standard.
Earthing screws: one inside, one outside. Max section of earthing wires: 4 mm2.
?ELECTRICAL CONTACTS: (see point 1.4). One microswitch SPDT or DPDT, with fixed dead band.
?DIFFERENTIAL CELL: double diaphragm with transmission shaft without packing nor pivots, coming in three models internally different (L,H,V) depending on the differential pressure range (see point 2).
Construction in three models internally different depending on the differential pressure range (see point 2).
Wetted parts: Pressure connections AISI 316. Diaphragm AISI series 300 or INCONEL 718 depending on ranges (see point 2). Gaskets in NBR. opt. see point 5.
?RANGES: differential pressure 160 mbar to 40 bar (see point 2). Static & One-side max pressure 40, 100, 160 bar (see point 1.1).
?SET POINT: adjustable throughout the range.
Repeatability: better than 1% of span.
?MOUNTING: surface (std.) or 2" pipe (with optional bracket).
?AMBIENT TEMPERATURE (operative limits): -40/+60°C.
?EQUIPMENT: certified according to
Directive PED 97/23/EC Annex I Category IV Modules B+D
Directive ATEX 94/9/EC Group II Category 1/2G Annex III+IV